A Uniform Method for Engine Outlet Temperature Field

Abstract

The invention discloses a uniformization method of an outlet temperature field of an engine. The uniformization method comprises the following steps: S1, measuring the outlet temperature of the periphery of the engine and determining a high temperature zone of the outlet temperature field of the engine and a lower temperature zone of the outlet temperature field of the engine according to the measured result; S2, swapping a first fuel nozzle in the high temperature zone of the outlet temperature field and a second fuel nozzle in the low temperature zone of the outlet temperature field. As proven through research and analysis, the performances of a flame barrel and fuel nozzles of the engine have a certain impact on the outlet temperature field of the engine, when the outlet temperature field of the engine is not uniform due to a non-uniform air inlet amount of an air hole of a flame barrel outer ring, by swapping the first fuel nozzle in the high temperature zone of the outlet temperature field and the second fuel nozzle in the low temperature zone of the outlet temperature field, the temperature condition of the outlet temperature field of the engine can be effectively and rapidly improved, the uniformity of the outlet temperature field of the engine can be improved and the output efficiency and delivery progress of a product are improved.

Description

technical field [0001] The invention relates to the technical field of engine equipment, and more specifically, to a method for uniforming the engine outlet temperature field. Background technique [0002] When an engine (such as a turboshaft aerospace engine) is running, the inside of the engine has the characteristics of high temperature and high pressure. When the internal temperature field of the engine is not uniform, it will lead to uneven heating of parts, which will cause the parts to generate twisting force, and even cause parts to break in severe cases. Once the parts break and break into the flow channel, it is easy to damage the blades, which will cause the engine to malfunction, seriously affecting the safety of the engine and the use of equipment. [0003] Therefore, an engine outlet temperature field test is required before the engine leaves the factory. Research and experiments have shown that unqualified products account for more than 25% of the total when...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a uniform method for the temperature field at the outlet of the engine to solve the problem that there is no effective and quick way to adjust the temperature field at the outlet of the engine in the prior art, resulting in low delivery efficiency of products

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